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Finding the Fourth Proportional to 57,737.50, 79,677.99 and 31,241.50

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Solution

The fourth proportional to 57,737.50, 79,677.99 and 31,241.50 is: 43,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,737.50 : 79,677.99 = 31,241.50 : x
  2. Step 2: Convert to fraction form
    57,737.50/79,677.99 = 31,241.50/x
  3. Step 3: Cross multiply
    57,737.50x = 79,677.99 × 31,241.50
  4. Step 4: Simplify right side
    57,737.50x = 2,489,259,924.59
  5. Step 5: Solve for x
    x = 2,489,259,924.59/57,737.50
  6. Step 6: Final answer
    x = 43,113.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.